Piling.



W. NEILSON.

FILING.

APPLIOATION FILED SEPT. 9, 1908.

Patnted Feb. 9, 1909.

WILLIAM NEILSON, OF PITTSBURG, PENNSYLVANIA.

FILING.

Specification of Letters Patent.

Patented Feb. 9, 1909.

Application filed September 9, 1908. Serial Ho. 452,212.

To all whom it may concern:

Be it known that I, VVILLIAM NEILSON, a citizen of the United States,residing at Pittsburg, in the county of Allegheny and State ofPennsylvania, have invented certain new and useful Improvements inPiling, of which the following is a specification, reference being hadtherein to the accompanying drawing. I

My invention refers to improvements in metal piling, of the classwherein a series of rolled metal piles are connected together at theiredges by means of co-acting holding portions capable of relativelongitudinal movement and providing for lateral deflection of theseveral piles of a series when connected.

The particular object of the-invention is to provide a constructionwhereby the edge of one pile will be engaged by the other to provide astrong flexible joint,prevent the spreading of the holding elements andcounteract the various strains to which constructions of this class aresubjected in use.

Heretofore in steel piling wherein one of the edges is engaged within orbetween the embracing edges of the next adjacent pile, strains tendingto separate the piles have caused the said elements to open or spread,and one of the objects of my invention, is to so construct the piles asto provide bearing edges which are so arranged as to oppose spreadingstrains at the various positions which the piles may assume withrelation to each other.

In the drawings accompanying the specification:Figure l is a crosssectional view showing a plurality of --piles assembled, of alternateuniform construction. Fig. 2 is a similar view showing a modifiedconstruction of the terminal holding elements. Fig. 3 is a similar viewbut showing the pile provided with male and female terminal edges,coacting with similar piles.

Generally stated, each pile consists of a longitudinal web portion 2,having boundary edges of either male or female form adapted totelescopically interfit and co-act with the edge of an adjoining pile.In the construe tion shown in Fig. 1 the web 2 is provided at each edgewith female enlargements 3, 3, partly cylindrical in form, havinggradually reduced tapering body portions rounding outwardly at each sideand toward the terminals 4:, 4. As shown said terminals are abruptlydeflected inwardly so as to provide having the outer curved faces 5,rounded to bear against the face of the interior cavity within theembracing portions of the female terminal of the co-acting pile. 3 isprovided with rearwardly extending longitudinal bearing edges or ribs 6,6, rounded as shown, and extending backwardly toward the web portionwith intervening clearance recesses 7 7. At the right of Fig. 1 saidmale pile is shown in longitudinal alinement with the web of the femalepile, while at the left of said figure the male pile is shown asdeflected at an angle thereto, one of its terminal ribs 6 only hearingagainst the reversed flange 4:, the other rib 6 being receded fromengagement due to the deflected position, while its outer rounded headportion 5 is shown in substantially bearing engagement with a portion ofthe interior cavity of the female member. In either position it willthus be seen that the inwardly-deflected flange or flanges 4 positivelyengage with one or. both The head.

of said ribs 6, so that the opposing strains will be counteractedwithout any tendency to spread the embracing female portions,

side only with a co-acting bearing rib 6, theother side of the headbeing bulbously enlarged and rounded so as to provide a bearing bodyportion 8 adapted to engage the substantially uniformly cylindricalinterior face of the female pile, as clearly shown.

Like Fig-'1, Fig. 2 shows the male pile in longitudinal alinement withthe web of the female pile at the right of said figure, the male pile atthe left thereof being deflected as in Fig. 1.

In Fig.3 I show a composite pile having a female element at one edge anda male element at the other, adapted to co-act and interfit with thecorresponding elem ants respectively of the next adjacent pile or piles.This construction constitutes an embodiment in a single pile of theseveral elements heretofore described, adapted to act in the samemanner, the only difference being that all of the piles are alike andwhen connected in series, the backwardly turned embracing edge 4 of thefemale portion constantly engaging the longitudinal projecting lipportion 6 of the male side or edge of the neXt adjacent pile, the otherelements coacting as stated.

bearing faces at all positions, permitting.

free movement or adjustment, while insuring a constant maintenance ofinterlocking continuity.

The piles are of simple construction, they may be readily rolled inproperly designed rolls, either entirely or partly byrolls and thenfinished .by suitable dies or other machinery. The disposition of themetal is such as to secure the best results, while the prevention ofspreading or opening of the joints will be found to avoid one of thecommon defects of this type -of construction and to provide acontinuous, strong and efiicient piling. H

While the construction, proportion, or arrangement of the parts mayvariously changed or modified bv the skilled mechanic and while thedrawings show some of the various forms which may be adopted inpractice, the essential feature of advantage is the hooked engagement ofthe co-acting elements.

'Having described my invention that which I claim is s l. A rolled metalpile having separated terminal edges, one of said edges being deflectedbackwardly, substantially as set forth.

2A rolled metal pile having separated wardly toward the body portion of.the pile.

3. A rolled metal pile consisting of a web provided with a dividedportion having a baekwardly bent bearing terminal, substantially as setforth.

4. A rolled metal pile having an edge portion provided with a backwardlyturned bearing terminal and a receiving recess for a correspondingelement of a co-acting pile, substantially asset forth.

5. In rolled metal piling, the combination of a pile having a dividededge portion, an inwardly and backwardly turned terminal element, and aninterfitting co-acting element provided with a longitudinal bearingflange, substantially as set forth.

6. In rolled metal piling, the combination of a pile having a sideportion composed of embracing portions terminating in inwardly turnedretaining edges, and a co-acting pile having a bulbous sideportion-provided with a bacln'ardly turned retaining edge, substantiallyas set forth.

In testimony whereof I aflix my signature inpresence of two witnesses.

WILLIAM NEILSON. Witnesses C. M. CLARKE, GEO. B. BLEMING.

terminal, edges turned inwardly and back-

